#include <syslog.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>

int main()
{
	int logmask;
	openlog("logmask", LOG_PID|LOG_CONS, LOG_USER);
	syslog(LOG_INFO,"informative message ,pid=%d",getpid());
	syslog(LOG_DEBUG,"debug message, should appear");
	logmask=setlogmask(LOG_UPTO(LOG_NOTICE));
	syslog(LOG_DEBUG,"debug message, should not appear");
	exit(0);

}

